Animals in which the antenna is almost completely mutant for hthunspecified (clones induced using the Minute technique) show a complete transformation of antenna to leg if the clones are induced before approximately 2 days after egg laying (AEL). If the antennal clones are induced 3 days AEL, a variable phenotype is seen, with many antenna showing some aristal development. Antennal clones induced at 4-5 days AEL show normal development of the arista and basal cylinder, although the more proximal segments of the antenna continue to be transformed towards leg.